package com.web.gatewayservice.filter;

import org.springframework.cloud.gateway.filter.GatewayFilterChain;
import org.springframework.cloud.gateway.filter.GlobalFilter;
import org.springframework.core.Ordered;
import org.springframework.core.io.buffer.DataBuffer;
import org.springframework.http.HttpStatus;
import org.springframework.http.server.reactive.ServerHttpRequest;
import org.springframework.http.server.reactive.ServerHttpResponse;
import org.springframework.stereotype.Component;
import org.springframework.web.server.ServerWebExchange;
import reactor.core.publisher.Mono;



/**
 * @author lenovo
 * @Description
 * @Date2025/4/21 下午4:35
 */

@Component
public class TokenValidateFilter implements GlobalFilter, Ordered {

    @Override
    public Mono<Void> filter(ServerWebExchange exchange, GatewayFilterChain chain) {

        //
        ServerHttpRequest request = exchange.getRequest();
        ServerHttpResponse response= exchange.getResponse();
        String token = request.getQueryParams().getFirst("token");
        if("123456".equals(token)){
            return chain.filter(exchange);
        }
        response.setStatusCode(HttpStatus.UNAUTHORIZED);
        DataBuffer data = response.bufferFactory().wrap("Request is UNAUTHORIZED ".getBytes());
        return response.writeWith(Mono.just(data));
    }

    @Override
    public int getOrder() {
        return 0;
    }




}
